Recorder.



O. W.- HEATH.

RECORDER. APPLICATION FILED OGT.15, 1913.

Patented Dec. 8, 1,914.

, r m t. 0 A .0 09 A. A; j I ml w 7/, Z i 7 H v 0 J Y EYEQ 5 w Wit fieeses:

/ e CHARLES W.H.T-JATH, ,0F cmcnvNA'r OHIO,

RECORDER,

To all whom it may concern I Be it known that 1, CHARLES WQHEATH,

.a citizen of the United-States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Recorders, of

which the following is a specification,

' My invention relates to recorders for mak ing'a permanent record of the movements of machines or instruments, the movements of which. are desired to be recorded and preserved, whether such recorder be in'cdrporated in the machine or instrument itself or whether it be merely an accessory to the machine or.

instrument .and whether the record .to be made shall be intermittent. or continuous; I

The object of my invention is to produce such intermittent or continuous record by meansof a series of momentary contacts of the marking element upon the recording sur face, thereby eliminating the modifying infiuences due to the variations, in character of the different regions of the recording .surface as encountered by a marking element constantly in contact with such surface throughout the relative movements of the recording surface and markingelement.

My invention is particularly applicable to machines or instruments wherein the 'actuation of the marking element is comparatively weak, or wherein the measurements to be recorded must be very accurate;

in either case requiring a high degree of precisionand delicacy in the construction and operation of the machine or instru-- ment throughout. I

Owing to the use 0 f a liquid as the means for providing the intermittent actuation that is to momentarily apply the marking element, my invention is more especially useful in connection with machines or instruments wherein liquids are measured or:

otherwise are IlIlVQlVBdlIl the operationpf the machineor instrument. An example of such an instrument 1s an apparatus for analyzing successive charges of gas, such as products of'combustion, and recording the successive analyses;

I My invention consists the parts and injghe'details of construction and arrange.

ment of parts as will hereinafter be more I 0 or casing 13, said stud having a thumb screw .t' 11y described anti claimed.

n. the drawing: Figure 1 a general perspective view illustrating the use of my invention in connection with a gas analysis apparatus, partsonly of the analysis appa- Specification of Lette rs Eatent.

Patented Dec. 8, 1914.

Application filed October 15, 1913. Serial No. -795,237.

ratus being shown, a weighted element causmg the momentary contact, the recording surface being cylindrical, and the marking element moving in a straight line; Fig. 2 illustrates-a modification of the device, with a plane recording surface and with part of a gas analysis apparatus, whichis also modilines, the difierent positions of the marking element as actuated by the analysis apparatus and by means of my invention; Fig.

lied, and illustrating, bythe use of dotted 3 is a detail of a chart suitable for use on if the device illustrated.inl ig'. 2-; Fig. 4 is a general perspective view of a modification of my "invention in which the momentary contactiscaused-by a buoyant element, and the instrument being of the, type used for recording temperatures, pressures, electric current, and the like, with a plane recording surface and with a narking'element moving through a curve; and Fig. 5 is a detail of a chart suitable forluse on the device My {invention as shown in Fig.1, comprises a containeror stand pipe 1 into which liquid flows constantly from a supply pipe 2, controlled by a valve 2, said stand pipe being open to the atmosphere. lower end of the stand pipe 1 the shorter leg 3 of. a siphon communicates with the interior illustrated in Fig. 4, for recording voltage.

Near the p of the stand pipe and rises and merges into thelonger leg 4 of thGoSlPhOH through a suitable bulb '5'to eliminate the influence of air bubbles in the operation of the siphon.

Suitably located and also communicating with the interior of the stand pipe 1,--is a nipple 6, and 'a flexible tube 7 leads from this nipple to the lower end of the chamber 8. A hub 9 carries an outwardly projected arm 10 and a downwardly projected arm 11,

and is pivoted in suitable bearings 12 mountsed on the framework or casing 13 which may inclose the parts of the apparatus. This hub 9 and arms 10 and 11 thus make up a bell crank, and the chamber 8 is suitablysuspended near the free en of the outwardly projected arm 10. Downward movement of the arm 10 due to the weight borne by this chamber 8 is resistedhby a tension spring 14 stretched from the arm 10 up to a stud 15 in a bracket 16 on the frame v ward swinging of the arm 11. The lower or free endof the downwardly projected. Q

xcontained in the vessel 28 filling arm 11 has a'transverse member 18 to make contact with a rod 19 that carries the marka ing element 20, which may be provided with a suitable reservoir 21 to supply the mark- Ting fluid, This rod 19 is pivoted on the free end ofia lever 22 which has a fulcrum 23 on part "of the framework pr casing 13,

i and beyond this fglcrum 23 there is an adjustable weight 24.- Fixed on the lever 22, between the fulcrum" 23jand the rod 19, is a segment 25 to Awhich a flexible element 26 is connected, which, running over the arc of. l

' tending above the surface of the liquid into the interior of the receiver. 27. It will'be understood thatthis device with the receiver 27 may operate in connection with any suitable other elements of a gas analysis a'ppara'tus which may force or admit air or gas through the tube 29 sinto the exterior of the receiver27 so that said receiver will rise .with the arm 22 under the counterbalancing action of the weight .24. A suitable drum 31 V turnspn an upri ht axis, its movement being r j caused a nd contro led by a suitable clockwork mechanism in the case 32, -A suitable rectangular-chart 33 is placed around the surary, it will make'a mark ata corresponding elevation on the shart:

face ofithe-drum 31 in the well known mannet-,- and when the arm- 22 'r ises or fallsit and if this marking element contacts with the surface of the chart 33 at any time during its rising and falling, or when stationtherehording device in connection with the analysis apparatus withthe 'marking element constantly in contact with the (chart is well known, and is described herein only to elucidate the explanation of my invention as applied to such chart and marking element.

The stand pipe 1 with its supply pipe 2- and the siphon as described, maybe those making up part of the gas analysis apparatus; and as before noted .my' invention isespecially applicable to such apparatus where these elements are already present as a part of that apparatus.

The operation of this device, constructed as shown. in land above described, de-

pends upon theincrease of weight on theoutwardly projected arm 10 due to an increase in quantity of. liquid in the chamber- 8. The rod 19 carrying the marking element 20 isso' positioned relative to the chart 33- thatthe rod 19; is: freely suspended and swings out fromthe chart 33 close to the transverse. member 18 of the arm 11, and

the marking element 20 will not make contact with the chart 33 until the chamber 8 has received enough liquid to overcome the will-raise or lower the marking element 20 Such v operation of tension of the spring 14 and, bydrawing the outwardly projected arm 10 down, swing. the downwardly extended arm 11 inward with its transverse part 18 pushing the rod 19 inward toward the chart 33. Thenfas long as the weight of liquid in the chamber 8 remains sufficient to maintain this position, the contact of the marking element 30 with the chart 33 will continue. To provide intermittent action is the purpose of the stand pipe 1 with its siphon and its liquid supply in, connection with the chamber 8. As above stated, the supply of liquid through the supply pipe 2.-is-.constant, and the liquid will rise in the stand pipe 1' and shorter leg 3 of the siphon until it reaches'the level Afupon which it will flow over the bend 34 of the siphon and out through the longer leg 4 thereof. As this liquid rosein the stand pipe 1 andithe leg 3, it also flowed through the nipple'6 and flexible connection? and rose in the chamber 81 The parts are so proportioned and positioned that, at about the instant that this limit of rise 6f the liquid is reached at the level A, the arm 10 willbe drawn down as above described, under the, weight of the amount of -liquid thus occupying the cham-- ber "8, thereby applying the marking element 20 to the chart 33. Furthermore, the rate of constant .flow of liquid through the supply pipe 2 is Smregulated that the outflow through the siphon, once started, upon reaching the bend 34;, will be much faster than the inflow from said supply pipe 2;

and the liquid will fall rapidly in thestand pipe 1, and'consequently in the chamber 8,

which will be rapidly emptied, upon which the spring l i will raise the arm 10, swinging the arm 11 outward with its transverse part '18, and permitting the rod 19 to swing outward, withdrawing the marking element 20 from the-chart 33. The outflow through the siphon will continue until the level of the liquid'in the stand pipe 1 falls below the opening from the stand pipe into the leg 3 of the siphon'when the liquid seal will be broken, allowing air to enter the leg 3, and temporarily destroying the action of the siphon. Then the supply through the supply mpe. 2, which has continued, will gradually fill the stand pipe 1 again to the level A, upon which the above described operation will berepeated. These operations will 120 recur at regular intervals, of length dependmg upon the rate of inflow of liquid, or

upon dimensions of the various parts, or.

upon both conditions. If the liquid flows inrapidly the marking element 20 will be brought into contact with the chart 33 frequently, or ifthei device be constructed with the dimensions of the various parts di min ished, the level A will be reached sooner with a given rate of supply. Furthermore,

the duration of contact of the marking elethe rate which determines the length of and permit the spring let-t raise said chamber along with the arm 10. All of-these elements may be properly adjusted in accordance with the number of records to oe made per hour or the desired'spacing of the are similar to those shownin Fig. 1 and" above describedwl iere,

v the chamber 8, afloatfiQ is provided-in a vessel 4:3 that connects to'the stand pipe 1 us through a short pipe' le', which need. not be rue-9 s '47 projecting over with a however, instead of straight line as shown in Figs. land 2.

flexible since the vessel 43 is stationary and the float 42 is' themovableelement.

of buoyant material, such as cork. On its top this float may have a suitable contact surface 25,,and a hub 46 has an arm downwardly .eX-

tended part i8 making contact with the con-- tact" surface 45." This hub 46 also has a marks upon the chart which will also dedownwardly extended arm 4:9 with a trans- 7,5

pend upon the speed of the drum 31, this verse part 50, so that this hub and arms 47 f being in most casesrotated once in twentyand 49 make up a bell crank similar to'that four hours. It maysbe explained that the: shown in Fig.1, but with the exception that movement of the chartis so slow relative to it is reversed with relation to the actuating 15 these operations of the device that the element; it will be seen that this is incident so record on the chart will consist of a series 'to the upward operation of the float 42 in of dots of no appreciable length and; very stead of the downward :operation' of the close together, so that this record if desired chamber 8. A lnthis example, a recording inmay be made practically a continuous line, strument, such as a temperature. or pressure 2 or maybe a fine dotted line as indicated at recorder, is operated with the use of my 8.5 B in Figs. 1, 3 and 4 and will beas suitable invention. Such an instrument being well for all practical purposes as would a con known, itneed not be further described than tinuous line. f to say; that its casing 51 may contain suitable in the device shown in Fig- 2, the lane up clockwork to rotate ,the plane circular chart circular chart is carried around with a 52, and its lever 53, carrying the marking Q6 oisk 36 rotated by suitable clockwork in the element 5%, must be ,suiiiciently flexible, or case 37. "Such a chart is shown in Fig. 3 otherwise have sufiicient movement/inward properly'graduated to record the percenttoward the chart 52 andoutward therefrom. agesof carbon dioxid in measured samples to properly operate in connection with my 30 of products ofcombustion, as, for instance, invention. The transverse part of the those from a boiler furnace. In Fig. 2, the arm 49 should not bear against this lever 53. marking element 20 iscarried near theupuntil the marking element 20 is to: engage per end of 'a'rod 38 mounted on a fioat 3 with the chart, and normally this arm rein a vessel 40, so'that the marking element mains in its outward position with its-part 35 20 is raised or lowered according to vari- 50 a short distance away from the lever 53, ion

. ations produced by the analysis apparatus andwith the marking element 54'withdrawn and as communicated through a pipe 41 from the chart 52. lVheli the liquid, by con-- leading into the vessel 40. Off the app astant supply from the supply pipe 2, rises ratus shown in Fig. 1 and above described, to the level E, it'w'illflow over the bend in 4n the only part that is shown in, Fig. 2 isthe the siphon and its level will beginto fall. 1% transverse part 18 of the arm 11, it being Just previous to this time the liquid has understood that the bell crank, the hollow alsorisen iii'the vessel43 suiiiciently to raise .chamber and the stand pipe and its accesthe floatalQ which, by raising the arm M series may be as shown in Fig. 1 and as be; and swinging the' arm 49 inward, brings the es fore described. Here the solid lines indimarking elemen 54: against the chart 52.1w cate the marking element 20 in a'raised po- Then, as the liquidfalls, the float 42 will go sition and withdrawn from the recording down-and will permit the marking element surfac 'and the upper dotted lines. at C ina to withdraw from the chart. When the dicate the marking element drawn ,over stand pipe 1 has filled again to the level E,

50 against the recording surface, while the the operation will be repeated; andthe oplower dotted lines at D indicate the markerations will recunwi-th frequency governed ing element in lowered position and drawn under the same conditions-as described in away from "the recording surface. The-free conneption with Fig. 1; Instead of a spring action of the float 39 makes" it desirable to the arm 47 has an adjustable weight 47 5 P i a S al g lde 18 on the transverse opposed by a stop 49 onthe casing- 51, for'lm] part d8, .iorthe rod 38 that supports. the -the arrii 49f. lln the recording instrument rking element 20, which guide, however, shown in Fig. 4, the marking element 54 has engages very lightl with said rod a curved motion, but its operation incon i F s th fi p jp l nd Its S pply ,nection with mv invention willrbe substanto pipe 2 and the siphon with the legs 3 and a tially the same as above described with re f- J2 erence to the marking element moving in a While the chamber and cylindrical chart are asspc ated in Fig. 1 and the float and. plane circular chart are associated in Fig M isjo a will be understood that either the chamher or the float may be used as the actuating:

that the marking element as well as the rerecording surface'beof paper or other .sur-.

" face upon which'the marking-material is deposited, or whether it be a coated surface or. other surfaceffromvwhich 'a. portion isremoved to make the mark- In any of the abbve modifications or asso clatlons, my invention has the important ad- 1 vantage that it permits the record to be made without the marking element' norinallv or continuously dragging on the recording surface. It is practically impossible to provide a recording. surface 1 which will be sufiiciently uniform in quality, as regards surface or nature of the material,

, so insure that themarking element'will not be retarded in some regions and allowed 'to travel more freely in other regions, thus ment so that it does not accurately record the conditions in the inst ument or machine 0 with which it is used. The friction caused -.by a marking device dragging over. the recordingf surface is a source of error in such instruments, which error mv; device. eliminates bv reasonof the intermittent application of'th'e marking elementto the recording surface with only momentary'contact, whereby the influence of the recording surface upon the movements of the marking element. is practically eliminated. because practicallyall of .the movement of the marking' element takes place when it is. w thdrawn from the -recording surface-f The parts of the'appa'ratus need have no great degree ofmovement, and being otherwise of simple, construction, there is little tend- "encv. to derange nent." Y Iii gas aly auna a h a at k such"? that, shown in Fig. 3, where .jthe marking "element is intermittently raised and lowered to record ea'ch-successiveanaly tg the mechanism of my invention, rhea-n: phcation of the marking element ,will take glaceonly at the termination .of rise of theark ing element; this rise'of the marking e6 @k-mie r t being stopped, under the influence modifying the travel of the marking "eleshown in Figs. =21 =-.a'fnd 2. and using ohms,

' ofithe relation of. the stand pipe 1 and its siphon tothe analysis apparatus, as well as of the stand pipe and its siphon, communicated through the pipe leading from the lower part of the stand pipe, as seen in Fig. 1. The application ofthe marking element takes place at about this time, as

before described. Thus, instead of the se-" ries-of radial lines on the chart, the record will consist merely of a succession of dots, each dot being located on the-chart where the termination of the corresponding radial line would be on a chart as ordinarily used in gas analysis apparatus. Here, the-same advantage of eliminating the modifying influence of, the friction between marking element and recording surface is attained, and

produced upon the chart. v From the foregoing description it 'Wlll be also a neater and lessconfusing record is,

understood, that my invention is capable of considerable modification, and of application to a wide variety of measuring and in .means for making a record on said surface,

acontainer, liquid automatically rising and falling in the container, and means where-v by the rise and fall vof liquid causes said means to intermittently make saidrecord;

2; In a recorder, a recording surface,-

means for making a record on said surface,

a container, liquid, with a free surface, automatically rising and falling in'thecontainer, and means whereby the rise and fall I of liquid having the free surfacecauses said means to intermittently make said,

record; .v V .7 g In a recorder, a marking element to move across said surface in the operation of saidmecorder, a

container, automatically rising and fall ng liquid in the container, a movable element -moved'according to the height-of the-liquid in? the, container, and means-whereby said :ino'vable element causes said marking 'ele-' 1; ment' to intermittently' bontact with said Ire'cording surfaceY 4. In -a recorder, a ireco'rding surface, a marking element to move across-said sur-' face in-the operation of said recorder, a container, liquid, with a free surface,'automatically rising and fallingbin the container, a'moyable element moved according I .totheheighjtin the containerof said liquid said. freesurface, and means'whereby recording surface.

recording surface, a

aid "movablejelement; causes said marking lenient to intermittently contact'with' said '15. Ina recorder, a recording'surface, -a

- marking element, means supporting said marking element for movement across sandsurface rn the operatlon of the recorder, a

, container, a liquid supply-to said container,

a SlPhOIl causing repeated rise and fall of liquid in'said container, a movable element moved according to the height :of I liquid inthe container,and means whereby said movable element causes said marking element to intermittently contact with said rea recording surface, :a

- the containen'and a lever *coa'cting with the movable element cording surface.

marking element,

7 which supports said chamber,

marking"element to I face' nthe-operatmn of said recorder, a cont'alnen-means causing repeated use and fall and with port ng the marking element, "whereby said 'movable element causes said; marking ele-' mentto intermittently contact with said re- In a recorder,

' face as the aforementioned mittently contact with said recording surand raised.

10. In a recorder, a recording surface, a

marking element, means supporting said marking element for movement. across said surface in the operation of the recorder, a

means supporting said the means supcontainer, means causing repeated rise and fall of liquid-in the container, a chamber receiv-ing liquid as the liquid'rises and losing liquid as the liquid falls in the container, a bell crank having two arms, one arm of which supports-said chamber, a yieldaBle support for s'aidarmwhereby said chamber depressesthe arm-when it receives liquid and arm is depressed whereby saidgarm is drawn upward as the chamber loses liquid, the other arm of said bell crank contacting with the means that a recording surface, a f means supporting Sald' marking element for-movement across said surface in container, a siphon liquid in the operation 'of the recorder, a a liquid supply "to said container, causing repeated rise and fall. of

of liquid in the container, a chamber receiving liquid as the liquid rises and losing liquid as the liquid'falls in the container, means wherebyf'sfaid chamber falls and rises as it receives and loses liquid, and means a recording surface, a

sai d con tainer, a movable element moved according to the height of liquid in the container,

whereby the falling and rising of the chainber causes said marking element to internnttently contactwlth said recording surbeli crank having two arms, one arm of I and a yield able support "for said arm whereby said chamber depresses the arm when it receives liquid and whereby said arm is drawn upward as the chamber loses liquid, the other arm of said bell crank contacting with the means that supports the marking elem t and causing said marking element to intersupports the markingelement and causing said marking element tointermittently eontactwith said recording surface as the aforementioned arm is-depressed and raised, and means for adjusting said yieldable support.

11. In arecorder, a recording surface, a marking element, means supporting said marking element for movement across said surface inthe operation of the recorder, a container,a liquid supply to said container,

liquid in said container, a chamber receiving liquid as the liquid rises and losing liquid as the liquid falls in the container, a bell crank having two arms, one arm of which supports said chamber, and a yieldable support for said arm whereby said chamber depresses the 'arm-.when it receives liquid and whereby said armis drawn upward as the chamber losesliquid, the other arm of said bell crank engaging with the means that supports the marking element and causing said marking-element to intermittently con tact with said recording surface as the aforementioned-arm is-depressed and raised.

' '12. in a recorder, a recording surface, a marking element, means supporting said marking element for movement across said surface in the operation of said recorder, a

liquid supply, means comprising a guide for the aforesaid movement of the marking element, and operative connection to the means comprising the guide whereby the liquid supplied automaticallycauses the marketing element to intermittently contact with'the recording surface.

13. lln a recorder, a recording surface, a marking element, means supporting said marking element for rectilinear movement across said surface in the operation of said recorder, a liquid supply, means comprising a guide for the aforesaid movement of the marking element, and operatlve connection to the means comprising the guide whereby the liquid supplied causes the marking element to intermittently contact with the recording surface.

a slphon causing repeated rise and fall of 14:. In a recorder, a recording surface, .a marklng element, means supporting sald marking element for movement across saidsurface in the operation of the recorder, a

container, .a liquid supply to said container,

a siphon causing repeated rise and fall of liquid in said container, a movable element i moved :according tothe height of liquid in the container, and operative connection from the movable element to the supporting means of the mo able element to the supporting for the marking element, compr sing a, guide 1' for said supporting means in the aforesaid movementot' the marking element, said operative connection transmittingthe motion marking -element, means supporting said p marking element for movement across said surface in the operation of the recorder, a container, means to cause repeated rise and fall of liquid in said container, a movable 2 element moved in {accordance with the rise and fall of liqu1d in thecontainer, a bell crank havmg two arms, one arm'of which coacts with the movable element, and a guide on. the other arm of the bell crank for the supporting means" of the marking element,

to guide said supportingmeans 'in the aforesaid movement of the marking-element, said bell'crank thereby transmitting the motion of the movable element to the supporting means, whereby the marking element is 0 marking element for movement acrosssaid surface in the operation of said recorder, a

caused to intermittently contact with the cording surface. I I

16. ln a recorder, a recording surface, a marking element means supporting said 7 L6 to r 2 It is hereby certified that in Letters Patent Idol-1,119,956, granted December 8, I J 1914;, upon the application of Charles w. Heath, of Cincinnati, Ohio, for an im 6Q Z proveinen't in Recorders, an error appears in the printed specification requiring 4-. i l a i I v correction as follows: Page 5, line 117, for the word marketing read marking; CU I I i i and that the said Letters Patent should be read with thisfcorrectiontherein that the L I i vsame mayconform to thefrecord of the case in the-Patent Qflice.

Signed and sealed this 4th d ay of May, A. n,- 1915.

[sEAn] .2 q-l a: a; t o. L3

container, means to vcause repeated rise and fall'of liquid in saidcontainer, a movableelement moved in accordance with the rise and fall of liquidinthe container, a bell crank having two arms, one of which coacts with the movable element, and 'a part of the other arim projecting across the supporting means of the marking .elementhfgsafd bell crank being moved by the movablei'ele'ment whereby said part of said arm contacts with.

the supporting 'means of the movable elef ment to cause said marking element to intermittently engage with-the recording surface.

marking element tomove across said-surface with the operation of. said recorder, an element yieldable under the action of gravity, means forrepeatedly' varying the weight inf- O Y I L. i 17. In a recorder, arecordlng surface, a

posed upon said movable-element tocause movement thereof, and means whereby the movement of said movable'element causes said marking element to intermittently contact with said recording surface.-

marking element .to move across said surface with the operation of said recorder, an element yieldable under the action of gravity,

means for repeatedly varying the weight imposed upon said movable element to cause movement thereof, means whereby the moveiment of said, movable element causes said marking element to intermittently contact with said recording surface, and means for adjusting the yieldableness of said movable element to the action of gravity:

onannns wanna,-

Witnesses; J v 7 JAMES N. RAMSEY, 7 CLARENCE EE DEWQ 3 Acting OOmmEssiOW'ofPatenZ-a I 18. In a recorder, a recording surface, a 

